For temperature monitoring a holiday I have after a long search the professional climate Logger Pro Klimalogg TFA 30.3039 incl. radio transmitter 30.3180 buy because it is connectable to the PC and there is a control program which not only displays the measured data, but also generates a CSV file if desired. This works very well and also the connection to the external sensor is good. What I rather do not like the weak link of the device to the USB radio stick. But what is not at all like the fact that an interruption of the connection between PC and the device can only be restored with a button on the device. So there is no possibility of active computer side to connect. This deficiency was also confirmed to me to demand from manufacturers. This limits the applicability of the device for remote monitoring a strong. Too bad, because it is a very satisfactory device otherwise.